CN201655429U - Extrusion molding mold used for self-supporting optical cable protective sleeve production - Google Patents
Extrusion molding mold used for self-supporting optical cable protective sleeve production Download PDFInfo
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- CN201655429U CN201655429U CN2010201192256U CN201020119225U CN201655429U CN 201655429 U CN201655429 U CN 201655429U CN 2010201192256 U CN2010201192256 U CN 2010201192256U CN 201020119225 U CN201020119225 U CN 201020119225U CN 201655429 U CN201655429 U CN 201655429U
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- mold
- die sleeve
- connector
- core rod
- round platform
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Abstract
The utility model relates to an extrusion molding mold used for self-supporting optical cable protective sleeve production, which comprises a mold sleeve, a mold core and a connector, wherein the mold sleeve is sequentially provided with an 8-shaped wire bearing cavity and a horn-shaped accommodating cavity along a shaft core of the mold sleeve, the accommodating cavity is communicated with the wire bearing cavity, the caliber of the wire bearing cavity is gradually enlarged, the mold core and the mold sleeve are coaxial and are arranged in a mutually communicated way, one end of the connector is connected with the inner wall of a circular ring part, the other end of the connector is connected with an extruding molding machine head, and a through hole communicated with a passage arranged on the mold core is arranged in the shaft axis direction of the connector. The utility model adopts modes of adding the connector connected with an extrusion molding machine head and making the connecting ends of the mold core and the mold sleeve into sealing connection for replacing the direct connection of the mold core and the extrusion molding machine head in the prior art, so the defect of regulation requirement when the mold core and the mold sleeve generate the eccentric effect can be avoided, and the uniformity of the protective sleeve layer can be ensured.
Description
Technical field
The utility model relates to a kind of extruded mould that cable jacket is produced that is used for, and relates in particular to a kind of extruded mould that is used to produce the self-bearing type cable jacket.
Background technology
Light, telecommunication cable are the main delivery means of current social various information networks.Along with the fast development of the Internet, the application of light, telecommunication cable more and more widely.Wherein " 8 " font structure light, cable are a kind of self-support aerial cables, it is made up of two parts: the first half center is a suspension line, be to be made of galvanized steel wire rope or other ropes, the latter half center is the cable core of optical cable, and one is coated with the plastic sheath layer outside suspension line and cable core.
Because the special construction of self-bearing type optical cable, determined that the production technology of itself and common single core type optical cable is different.The existing extruded mould that is used for the production of self-bearing type cable jacket comprises die sleeve, the core rod that is connected with die sleeve one end same axis, the other end of core rod is connected with extrusion head, suspension line and cable core are sent to the die sleeve port by core rod respectively, simultaneously, sheath solution is injected in the space between progressive die cover and the core rod, at the die sleeve port, combining closely with suspension line and cable core through the sheath of extrusion moulding is sent.Because this extruded mould by only being made up of core rod and die sleeve, before producing, needs to regulate the position of core rod and die sleeve, causes the plastic sheath bed thickness thin inhomogeneous to avoid both off-centre.
The utility model content
The utility model purpose is to provide a kind of to guarantee that the self-bearing type cable jacket evenly is coated on the extruded mould on suspension line and the cable core in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind ofly be used for the extruded mould that the self-bearing type cable jacket is produced, it comprises,
Die sleeve, described die sleeve offer " 8 " font successively and hold the line chamber, become the big containing cavity that is trumpet type gradually with the described line chamber bore that is connected that holds along its axle center;
Core rod, and the be connected setting coaxial of described core rod with die sleeve, the annulus portion that described core rod comprises round platform portion, is connected mutually with round platform portion, described round platform portion is positioned at the containing cavity of die sleeve, and has the liquid storage space between containing cavity inwall and the round platform portion outer surface, described round platform portion offers two passages that are used for wearing respectively suspension line and cable core that parallel with its axial line, described annulus portion outer surface is tightly connected mutually with the die sleeve end, and offers the inlet that a plurality of and described liquid storage space is connected in the described annulus portion;
Connector, the one end is connected with described annulus portion inwall, and the other end is connected with extrusion head, and described connector offers the through hole that is connected with passage on the core rod along its direction of axis line.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage: the utility model is by adopt to increase the connector that is connected with extrusion head and be that the mode that is tightly connected replaces that core rod directly is connected with extrusion head in the prior art with core rod and die sleeve link, thereby avoided core rod and die sleeve to produce the eccentric defective that needs adjusting, guaranteed the uniformity of restrictive coating.
Description of drawings
Accompanying drawing 1 is the end view of the utility model die sleeve;
Accompanying drawing 2 is an A-A direction cutaway view in the accompanying drawing 1;
Accompanying drawing 3 is the end view of the utility model core rod;
Accompanying drawing 4 is a B-B direction cutaway view in the accompanying drawing 3;
Accompanying drawing 5 is the cutaway view of the utility model connector;
Accompanying drawing 6 is the axial cutaway view of overall structure of the utility model extruded mould;
Wherein: 1, die sleeve; 11, hold the line chamber; 12, containing cavity;
2, core rod; 21, round platform portion; 211, passage; 22, annulus portion; 221, inlet;
3, connector; 31, through hole;
4, liquid storage space;
Embodiment
Below in conjunction with accompanying drawing, describe particular content of the present utility model in detail for example:
Extruded mould as shown in Figure 6, comprise same axis and be communicated with die sleeve 1, core rod 2, the connector 3 that connects, the other end of connector 3 is connected with the extrusion head (not shown), will the concrete structure of die sleeve 1, core rod 2 and connector 3 be introduced below:
Illustrated in figures 1 and 2 is the structure of die sleeve 1, its center offer successively " 8 " font hold line chamber 11, with hold line chamber 11 bore that is connected and become the big containing cavity that is trumpet type 12 gradually, wherein, hold line chamber 11 axial lengths and be about 8～12mm, hold the big I of two diameter of a circles that are connected in line chamber 11 and determine that according to the model specification for the treatment of extrusion molding the bell mouth angle of extrusion molding containing cavity 12 is about 40～60 degree.
Fig. 3 and shown in Figure 4 be the structure of core rod 2, it is formed by round platform portion 21 and with annulus portion 22 that round platform portion 21 is connected mutually, described round platform portion 21 offers two passages 211 that are used for wearing respectively suspension line and cable core that parallel with its axial line, offer a plurality of inlets 221 in the described annulus portion 22, in the present embodiment, a plurality of inlets 221 are circle distribution.
The drift angle of round platform portion 21 is approximately 20 degree, like this when carrying out die sleeve 1 with core rod 2 installations, the round platform portion 21 of core rod 2 is placed in the containing cavity 12 of die sleeve 1, its annulus portion 22 outer surfaces are tightly connected mutually with the internal face of die sleeve 1 end, because the subtended angle of round platform portion 21 is less than the subtended angle of die sleeve 1 containing cavity 12, so have liquid storage space 4 between the inwall of containing cavity 12 and round platform portion 21 outer surfaces, each inlet 221 is connected with liquid storage space 4.Simultaneously, round platform portion 21 front passage 211 of core rod 2 stretch into holding in the line chamber 11 of die sleeve 1.
Described connector 3 offers the through hole 31 that is connected with passage 211 on the core rod 1 along its direction of axis line, and as shown in Figure 5 and Figure 6, the one end is connected with described annulus portion 22 inwalls, and the other end is connected with extrusion head.
When carrying out stranding processing, shunt from extrusion head behind the plastic molting flows out, and flow in the liquid storage space 4 between core rod 2 and the die sleeve 1 by one on the core rod 2 circle inlet 221, suspension line and cable core synchronously penetrate in the through hole 31 of connector 3, and send into successively in the passage 211 in the corresponding core rod 2, then enter the holding in the line chamber 11, at this moment of die sleeve 1, plastic solution is gone out by extrusion molding around being coated on suspension line and cable core together, thereby finishes the stranding process.
The utility model core rod and die sleeve fit tightly, and make the self-centering effect of core rod die sleeve by fitting tightly to reach, and need not nurse cover off-centre by adjusting die sleeve, therefore, have guaranteed the uniformity of self-bearing type cable jacket thickness, have bigger practicality.
Claims (3)
1. one kind is used for the extruded mould that the self-bearing type cable jacket is produced, and it is characterized in that: it comprises
Die sleeve (1), described die sleeve (1) offer " 8 " font successively and hold line chamber (11), become the big containing cavity that is trumpet type (12) gradually with described line chamber (11) bore that is connected that holds along its axle center;
Core rod (2), described core rod (2) and be connected setting coaxial with die sleeve (1), described core rod (2) comprises round platform portion (21), the annulus portion (22) that is connected mutually with round platform portion (21), described round platform portion (21) is positioned at the containing cavity (12) of die sleeve (1), and has liquid storage space (4) between containing cavity (12) inwall and round platform portion (21) outer surface, described round platform portion (21) offers two passages that are used for wearing respectively suspension line and cable core (211) that parallel with its axial line, described annulus portion (22) outer surface is tightly connected mutually with die sleeve (1) end, and offers the inlet (221) that a plurality of and described liquid storage space (4) is connected in the described annulus portion (22);
Connector (3), the one end is connected with described annulus portion (22) inwall, and the other end is connected with extrusion head, and described connector (3) offers the through hole (31) that is connected with passage (211) on the core rod (1) along its direction of axis line.
2. a kind of extruded mould that the self-bearing type cable jacket is produced that is used for according to claim 1, it is characterized in that: the inlet (221) in the annulus portion (22) of described core rod (2) is circle distribution.
3. a kind of extruded mould that the self-bearing type cable jacket is produced that is used for according to claim 1, it is characterized in that: described round platform portion (21) front passage (211) extends to holding in the line chamber (21) of described die sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201192256U CN201655429U (en) | 2010-02-22 | 2010-02-22 | Extrusion molding mold used for self-supporting optical cable protective sleeve production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201192256U CN201655429U (en) | 2010-02-22 | 2010-02-22 | Extrusion molding mold used for self-supporting optical cable protective sleeve production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655429U true CN201655429U (en) | 2010-11-24 |
Family
ID=43120673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201192256U Expired - Fee Related CN201655429U (en) | 2010-02-22 | 2010-02-22 | Extrusion molding mold used for self-supporting optical cable protective sleeve production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655429U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751051A (en) * | 2011-04-21 | 2012-10-24 | 樊立敏 | Diverter-less headpiece for plastic extruding of electric wires and cables and using method thereof |
| CN103496141A (en) * | 2013-09-27 | 2014-01-08 | 江苏亨通光电股份有限公司 | Special-shaped self-supporting optical cable mould and manufacturing method thereof |
| CN108340556A (en) * | 2017-12-29 | 2018-07-31 | 通鼎互联信息股份有限公司 | A kind of molding machine of 8 word cable of double-colored item |
-
2010
- 2010-02-22 CN CN2010201192256U patent/CN201655429U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751051A (en) * | 2011-04-21 | 2012-10-24 | 樊立敏 | Diverter-less headpiece for plastic extruding of electric wires and cables and using method thereof |
| CN103496141A (en) * | 2013-09-27 | 2014-01-08 | 江苏亨通光电股份有限公司 | Special-shaped self-supporting optical cable mould and manufacturing method thereof |
| CN108340556A (en) * | 2017-12-29 | 2018-07-31 | 通鼎互联信息股份有限公司 | A kind of molding machine of 8 word cable of double-colored item |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20190222 |